Answer: =<u>Convergent</u> evolution
Explanation: <u>Convergent</u> evolution occurs when organisms share a trait that originated in an ancestor but changed over time in different populations.
Answer: Neutral
solution
Neutral solution
have equal number of hydrogen ions and hydroxyl ions in a solution. Its pH is
naturally equal to 7 and the charge in that solution is neutral since the
concentrations are equal. In the event that the concentration is unequal, the
solution would have had a positive or negative charge.
Additionally, acidic
solutions have more hydrogen ions than hydroxide ions while an alkaline solution
contains more hydroxide ions than hydrogen ions.
The body's first line of defense is actually the non-specific immune system which is also called innate immunity.
Innate immunity employs both physical and chemical barriers that form the first line of defense. These include:
1. The intact skin. The skin is made up of keratin in its outermost layer. Keratin makes skin tough and resistant and pathogens usually cannot penetrate unless the skin is broken.
2. The mucus membrane. This is a thin membrane that forms a protective lining inside many organs and other parts of the body such as the trachea. Mucus produced by the membrane traps bacteria and other harmful particle which are then expelled from the body.
3. Tears. Tears from our eyes contain lysozyme, a chemical that kills bacteria.
If the pathogen gets through or evades these types of defenses, then it is dealt with by the second line of defense which is called specific immunity or acquired immunity. It is here that white blood cells namely the B lymphocytes and T lymphocytes attack, kill or neutralize pathogens.
Tuna, grouper, mullet, and sheepshead all species of fish belong to class Actinopterygii.
Explanation:
Actinopterygii is a class of fish which is also referred to as ray-finned fishes. This belongs to a class of bony fish.
It is the skeletal structure of these fishes that they have the class ray-finned fishes. Fish in this class have fins which are webs of skin supported by bony spines. Their fin rays are directly attached to the proximal or basal elements of their skeleton, which is radial.
The radial in fish is a link between their fins and the internal skeleton.
One of the most influential class of vertebrates in fishes is of actinopterygii.
This class of fish has several scales and one of the most advanced one is leptoid scales.
<span>1. 6 carbon dioxide molecules combine with six 5-carbon molecules forming twelve 3-carbon molecules.
2. The 12x 3-carbon molecules are converted into high-energy forms.
3. 2 of the 12 3-carbon molecules are removed and the plant uses them to produce sugars, lipids, amino acids, and other compounds.
4. The 10x 3-carbon molecules change back into six 5-carbon molecules, which combine with 6 more carbon dioxide molecules. The process starts over.</span>
